body {
    min-width: 320px;
    max-width: 750px;
    /* flexble给我们划分了10等份数 */
    width: 10rem;
    margin: 0 auto;
    line-height: 1.5;
    font-family: Arial, Helvetica;
    background: #F2F2F2;
  }
  a{
    text-decoration: none;
    font-size: .333333rem;
  }
  /* 如果屏幕超过750px 那么我们按照750设计稿来走 不会让我们页面超过750px */
  @media screen and (min-width:750px){
    html{
      /* !important提高权重 */
      font-size: 75px !important;
      }
  }
  /* .search-content部分 */
  .search-content{
    display: flex;
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 10rem;
    height: 1.173333rem;
    background-color: #FFC001;
  }
  .classfiy{
    width: .586667rem;
    height: .933333rem;
    margin: .146667rem .333333rem .133333rem;
    background: url(../images/classify.png) no-repeat;
    background-size: .586667rem .933333rem; ;
  }
  .search{
   flex: 1;
  }
  .search input{
    /* box-sizing: border-box;防止撑开盒子 */
    box-sizing: border-box;
    outline: none;
    border: 0;
    width: 100%;
    height: .88rem;
    font-size: .333333rem;
    background-color: #FFF2CC;
    margin-top: .133333rem;
    border-radius: .44rem;
    color: #757575;
    padding-left: .733333rem;
  }
  .login{
    width: 1rem;
    height: .933333rem;
    margin: .133333rem;
    text-align: center;
    line-height: .933333rem;
    color: #fff;
    font-size: .333333rem;
  }
   /* banner部分 */
   .banner{
     width: 10rem;
     height: 4.906667rem;
   }
   .banner img{
     width: 100%;
     height: 100%;
   }